include/wx/link.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/link.h
   3 // Purpose:     macros to force linking modules which might otherwise be
   4 //              discarded by the linker
   5 // Author:      Vaclav Slavik
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) Vaclav Slavik
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_LINK_H_
  12 #define _WX_LINK_H_
  13
  14 // This must be part of the module you want to force:
  15 #define wxFORCE_LINK_THIS_MODULE(module_name)                         \
  16                 extern void _wx_link_dummy_func_##module_name ();     \
  17                 void _wx_link_dummy_func_##module_name () { }
  18
  19
  20 // And this must be somewhere where it certainly will be linked:
  21 #define wxFORCE_LINK_MODULE(module_name)                              \
  22                 extern void _wx_link_dummy_func_##module_name ();     \
  23                 static struct wxForceLink##module_name                \
  24                 {                                                     \
  25                     wxForceLink##module_name()                        \
  26                     {                                                 \
  27                         _wx_link_dummy_func_##module_name ();         \
  28                     }                                                 \
  29                 } _wx_link_dummy_var_##module_name;
  30
  31
  32 #endif // _WX_LINK_H_